package basicType;

/**
 * @author Created by chenxin34 on 2021/3/29 下午7:41.
 */
public class FooTest {

    public static void main(String[] args) {
        long x = 1;
        for (int i = 20; i > 1; i--) {
            x = x * i;
        }
        for (int i = 1; i <= 10; i++) {
            x = x / 2;
        }
        System.out.println(x);
    }
}
